Home / 70,190.25-105,255.41-40,628.49

Finding the Fourth Proportional to 70,190.25, 105,255.41 and 40,628.49

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Solution

The fourth proportional to 70,190.25, 105,255.41 and 40,628.49 is: 60,925.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,190.25 : 105,255.41 = 40,628.49 : x
  2. Step 2: Convert to fraction form
    70,190.25/105,255.41 = 40,628.49/x
  3. Step 3: Cross multiply
    70,190.25x = 105,255.41 × 40,628.49
  4. Step 4: Simplify right side
    70,190.25x = 4,276,368,169.49
  5. Step 5: Solve for x
    x = 4,276,368,169.49/70,190.25
  6. Step 6: Final answer
    x = 60,925.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.